Smetak
- Tahun: 2018
- Negara: Brazil
- Genre: Documentary
- Studio: Gambiarra Sonora
- Kata kunci: musician, experimental
- Pengarah: Nicolas Hallet, Simone Dourado, Mateus Dantas
- Pelakon: Walter Smetak, Mateus Dantas, Rogério Duarte, Thomas Gruetzmacher, Guilherme Magalhães Vaz, Marco Scarassatti
